Table of Contents
Introduction to camera module troubleshooting ..............................................................................................5–5
The effect of image taking conditions on image quality...................................................................................5–6
Camera construction........................................................................................................................................... 5–10
Dynamic camera configuration.......................................................................................................................... 5–12
Image quality analysis ....................................................................................................................................... 5–13
Testing for dust in camera module .............................................................................................................. 5–13
Testing camera image sharpness................................................................................................................. 5–14
Dirty camera lens protection window ......................................................................................................... 5–15
Image bit errors ............................................................................................................................................. 5–15
Camera troubleshooting flowcharts.................................................................................................................. 5–16
Camera hardware failure message troubleshooting.................................................................................. 5–16
Camera baseband HW troubleshooting....................................................................................................... 5–18
Camera viewfinder troubleshooting ............................................................................................................ 5–19
Bad camera image quality troubleshooting................................................................................................ 5–20
List of Tables
Table 5 Camera specifications............................................................................................................................ 5–10
List of Figures
Figure 90 Blurred image. Target too close. .........................................................................................................5–6
Figure 91 Blurring caused by shaking hands ......................................................................................................5–7
Figure 92 Near objects get skewed when taking images from a moving vehicle...........................................5–7
Figure 93 Noisy image taken in +70 degrees Celsius .........................................................................................5–8
Figure 94 Image taken against light....................................................................................................................5–8
Figure 95 Flicker in an image; object illuminated by strong fluorescent light................................................5–9
Figure 96 A lens reflection effect caused by sunshine........................................................................................5–9
Figure 97 Good image taken indoors................................................................................................................ 5–10
Figure 98 Good image taken outdoors ............................................................................................................. 5–10
Figure 99 Camera module cross section and assembly principle................................................................... 5–11
Figure 100 Camera module bottom view including serial numbering.......................................................... 5–12
Figure 101 DCC data update .............................................................................................................................. 5–13
Figure 102 Effects of dust on optical path........................................................................................................ 5–14
Figure 103 Image taken with clean protection window................................................................................. 5–15
Figure 104 Image taken with greasy protection window .............................................................................. 5–15
Figure 105 Bit errors caused by JPEG compression.......................................................................................... 5–16
RM-340; RM-341
Camera Module Troubleshooting
Issue 1 COMPANY CONFIDENTIAL Page 5 –3
Copyright © 2007 Nokia. All rights reserved.
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